Section 1
Columbia 400 (LC41-550FG)
General
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: -/11-10-2004
1-11
Maximum Zero-Fuel Weight
The maximum weight authorized for an aircraft that does not
include the weight of the fuel. This weight includes the basic
empty weight plus the weight of the passengers and baggage.
The maximum zero-fuel weight can change depending on the
center of gravity location. See Figure 2 - 4 for an example.
Minimum Flight Weight
This is the minimum weight permitted for flight operations
and includes the basic empty weight plus fuel, pilot,
passengers, and baggage. The minimum flight weight can
change depending on the center of gravity location. See
Figure 2 - 4 for an example.
Minimum Useful Load
For utility category airplanes, certified for night or IFR
operations, a weight of 190 pounds for each installed seat
plus the fuel weight for 45 minutes at maximum continuous
power.
Moment
The moment of a lever is the distance, in inches, between the
point at which a force is applied and the fulcrum, or the point
about which a lever rotates, multiplied by the force, in
pounds. Moment is expressed in inch-pounds.
Reference Datum
This is an imaginary vertical plane from which all horizontal
distances are measured for balance purposes.
Standard Empty Weight
This is the weight of a standard airplane including unusable
fuel, full operating fluids, and full oil.
Station
The
Station
is a location along the airplane's fuselage usually
given in terms of distance from the reference datum, i.e.,
Station 40 would be 40 inches from the reference datum.
Useful Load
The
Useful Load
is the difference between Takeoff Weight or
Ramp Weight, if applicable, and Basic Empty Weight.
MISCELLANEOUS
Flight Time - Airplanes
Pilot time that commences when an aircraft moves under its
own power for the purpose of flight and ends when the
aircraft comes to rest after landing.
Time in Service
Time in service, with respect to maintenance time records,
means the time from the moment an aircraft leaves the
surface of the earth until it touches it at the next point of
landing.